> i have a hook function attached to 'move-frame-functions'.  however, in
>   emacs 28.1, this hook does not seem to fire at all.
>
>
> In GNU Emacs 28.1 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60
> Version 10.14.6 (Build 18G95))
>   of 2022-04-04 built on builder10-14.lan
> Windowing system distributor 'Apple', version 10.3.2113
> System Description:  macOS 12.2.1

A couple of days ago John Yates told me that

(add-hook
 'move-frame-functions
 (lambda (frame)
   (message "Frame %s moved to %s" frame (frame-position frame))))

doesn't work for him with a pgtk build either.  So I suspect that this
never worked on macOS.

martin